BZB1000BTWireless Microphone Transmitter

CIRCUIT DESCRIPTION 1000BT Portable transmitter type of emission : FM (F3E) Antenna : Built-in antenna Microphone unit : ECM and dynamic Battery : 9VDC Oscillation method : PLL synthesizer Frequency range : 723.000 - 735.000MHz Number of channel : 121 channels (100KHz step from 723.000MHz) Noise reduction : compressor (log 2:1) 1000BT is also a portable type transmitter and it operates a 9V battery. Its antenna is also built-in, nondetachable type. There is one PCB inside and its ground lines are located in the PCB itself.

APPLICANT: AZDEN CORPORATION FCC ID: BZB1000BT TABLE OF CONTENTS LIST TEST REPORT CONTAINING: PAGE 1........ GENERAL INFORMATION PAGE 2.........DESCRIPTIONS PAGE 3-4.......RF POWER TEST PROCEDURE & AUDIO FREQUENCY RESPONSE GRAPH PAGE 5-7.......AUDIO INPUT VERSUS MODULATION GRAPH PAGE 8-11......OCCUPIED BANDWIDTH PAGE 12........RADIATED EMISSIONS TEST DATA & TEST PROCEDURE PAGE 13........FREQUENCY STABILITY TEST DATA PAGE 14........EQUIPMENT LIST EXHIBITS CONTAINING: EXHIBIT 1.......FCC ID LABEL SAMPLE & ID LABEL LOCATION EXHIBIT 2.......BLOCK DIAGRAM EXHIBIT 3A-3C...SCHEMATICS EXHIBIT 4A-4B...TUNING PROCEDURE EXHIBIT 5.......CIRCUIT DESCRIPTION EXHIBIT 6A-6H...USER'S MANUAL EXHIBIT 7.......TEST SET UP PHOTOGRAPH EXHIBIT 8A......EXTERNAL FRONT VIEW PHOTOGRAPH EXHIBIT 8B......EXTERNAL REAR VIEW PHOTOGRAPH EXHIBIT 8C......EXTERNAL CONNECTOR SIDE PHOTOGRAPH EXHIBIT 9A-9B...INTERNAL COMPONENT SIDE PHOTOGRAPH EXHIBIT 10A-10B.INTERNAL COPPER SIDE PHOTOGRAPH APPLICANT: AZDEN CORPORATION FCCID: BZB1000BT REPORT #: T:\CUS\A\AZDEN\169AU1\169AU1RPT.DOC TABLE OF CONTENTS LIST GENERAL_INFORMATION_REQUIRED FOR_TYPE_ACCEPTANCE 2.1033 AZDEN CORPORATION will manufacture the BZB1000BT in quantity, for use under FCC RULES PART 74.801, LOW POWER AUXILIARY STATIONS. 2.1033 (c4) TECHNICAL_DESCRIPTION (1) Type of Emission: 130K0F3E Bn = 2M + 2DK M = 20000 D = 45kHz(Peak Deviation) K = 1 Bn = 2(20k) + 2(45k)(1) = 130k ALLOWED AUTHORIZED BANDWIDTH = 200kHz. 74.861(e)(5) (2) Frequency Range: Part 74: 723-735 MHz TEST FREQ = 729.00 MHz. (3) Power Range and Controls:UNIT has no controls. (4) Maximum Output Power Rating: .1 Watts into 50 ohms resistive load. (5) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY 9.0V BATTERY Vce = 9.0 Volts Ice = 28 mA. 2.1033(c.10)(7) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT # 3A-3C. The block diagram is included as EXHIBIT #2. (8) Instruction book. The instruction manual is in- cluded as Exhibit 6A-6H. (9) Tune-up procedure. The tune-up procedure is given in page 4A-4B. APPLICANT: AZDEN CORPORATION FCCID: BZB1000BT REPORT #: T:\CUS\A\AZDEN\169AU1\169AU1RPT.DOC PAGE #: 1 APPLICANT: AZDEN CORPORATION FCC ID: BZB1000BT (10) Description of all circuitry and devices provided for determining and stabilizing frequency. (11) Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. This circuitry is described on page 5. Limiting Modulation: The transmitter audio circuitry is contained in IC101, IC102 and IC103. Limiting Power: There is no provision for limiting power. (12) Digital modulation. This unit does not use digital modulation. 2.983(e) The data required by 2.1046 through 2.1057 is sub- mitted below. 2.1046 RF_power_output. RF power is measured by effective radiated power. OUTPUT POWER: .1 WATTS ERP APPLICANT: AZDEN CORPORATION FCCID: BZB1000BT REPORT #: T:\CUS\A\AZDEN\169AU1\169AU1RPT.DOC PAGE #: 2 APPLICANT: AZDEN CORPORATION FCC ID: BZB1000BT R.F. POWER OUTPUT TEST PROCEDURE /------------\ /------------\ | | | | | Transmitter|------------------------|__ 50 ohm | | under test | | Watt | \------------/ | Meter | | \------------/ /------------\ | | | Audio | | Oscillator | | | \------------/ 2.1047(a)(b) Modulation_characteristics: AUDIO_FREQUENCY_RESPONSE The audio frequency response was measured in accordance with TIA/EIA Specification 603. The audio frequency response curve is shown on the next page. AUDIO_LOW_PASS_FILTER The audio low pass filter is not required in this unit. APPLICANT: AZDEN CORPORATION FCCID: BZB1000BT REPORT #: T:\CUS\A\AZDEN\169AU1\169AU1RPT.DOC PAGE #: 3 APPLICANT: AZDEN CORPORATION FCC ID: BZB1000BT 2.1049(c) Occupied Bandwidth: Data in the plots show that all sidebands between 50 & 100% for the authorized bandwidth are attenuated by at least 25dB. From 100 to 250% of the authorize3d band- width they are attenuated by at least 35dB and beyond 250% 43 log(Po) dB. The plot shows the transmitter modulated with 15000 Hz(the highest modulation frequen- cy), adjusted for 50% modulation plus 16 dB. The spectrum analyzer was set with the unmodulated carrier at the top of the screen. The test procedure diagram and occupied bandwidth plots follow. Wireless Microphone transmitter: Test procedure diagram OCCUPIED BANDWIDTH MEASUREMENT /------------\ Coupler /------------\ | | /----\ | | | Transmitter|------------|____|------|__ 50 ohm | | under test | \----/ | Resistive| \------------/ | | Load | | | \------------/ /------------\ /-----------\ | | | | | Audio | | Spectrum | | Oscillator | | Analyzer | | | \-----------/ \------------/ REQUIREMENT: PART 74: 200kHz EMISSION BANDWIDTH. APPLICANT: AZDEN CORPORATION FCCID: BZB1000BT REPORT #: T:\CUS\A\AZDEN\169AU1\169AU1RPT.DOC PAGE #: 8 2.1051 Spurious emissions at antenna terminals(conducted): Not Applicable no antenna connector. 2.1053(a)(b) Field strength of spurious emissions: NAME OF TEST: RADIATED SPURIOUS EMISSIONS REQUIREMENTS: Emissions must be 43 +10log(Po) dB below the mean power output of the transmitter. 43 + 10 log(0.01) = 23.00 dB TEST DATA: EMISSION FREQUENCY MHz MR @ 3m dBuV COAX LOSS dB ACF dB FIELD STRENGTH dBuV/m FCC LIMIT DB ATTN dB MARGIN Db ANT. POL 729.00 83.30 2.00 21.73 107.03 0.00 0.00 0.00 H 1458.00 41.10 1.00 25.83 67.90 23.00 39.10 16.10 V 2187.00 36.20 1.06 28.47 65.73 23.00 41.31 18.31 V 2916.00 34.10 1.17 30.29 65.56 23.00 41.47 18.47 V 3645.00 21.60 1.28 32.11 54.99 23.00 52.04 29.04 H 4374.00 15.50 1.39 33.42 50.31 23.00 56.72 33.72 H 5103.00 4.50 1.50 34.24 40.24 23.00 66.80 43.80 H 5832.00 17.90 1.61 35.06 54.57 23.00 52.47 29.47 V 6561.00 19.50 1.71 35.88 57.10 23.00 49.94 26.94 V 7290.00 1.80 1.82 36.70 40.33 23.00 66.71 43.71 V METHOD OF MEASUREMENT: The procedure used was TIA/EIA STANDARD 603. The spectrum was scanned from 30 to at least the tenth harmonic of the fundamental using a HP model 8566B spectrum analyzer and an appro- priate antenna. Measurements we…

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